What is Rule 1 Mass Gainer?

Mass Gainer is a nutrient-dense formula that delivers over 1,220 calories, 250g of blended carbs, and 40g of all-whey protein in every serving.

When & how should I take Rule 1 Mass Gainer?

Use Mass Gainer longside regular meals—not as a replacement—to support your daily calorie goals. For best results, combine with a nutrient-dense diet and consistent resistance training.

How do I prepare Mass Gainer?

Mix 2 heaping scoops of Mass Gainer with 20–24 oz. of water, milk, or your favorite beverage in a blender or large shaker cup until smooth.

Is Rule 1 Mass Gainer tested for quality?

Yes. As an Informed Choice certified product, Mass Gainer is regularly tested for the presence of banned substances by world-class anti-doping laboratory LGC.

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Mass Gainer, Chocolate Peanut Butter, 8 Servings

Product ID: 555284097

Details

Brand
Rule 1
Diet Type
Gluten Free
Flavor
Chocolate
Item Weight
6 pounds
Servings per Container
8

⚡Enhanced with pure creatine monohydrate

💪40g all-whey protein with 9g BCAAs

🔥1,220+ calories per serving

S$131

Duties & taxes included

In stock

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Description

🚀 Fuel Your XXL Transformation with Every Shake!

CLEAN CERTIFIED - Crafted in GMP-certified USA facilities with no banned substances—pure quality you can trust.
PROTEIN POWERHOUSE - 40g of premium whey protein delivers essential BCAAs to maximize recovery and muscle synthesis.
DELICIOUSLY CONVENIENT - Chocolate peanut butter flavor that blends into a creamy shake or smoothie—your new daily ritual.
XXL GAINS NO COMPROMISE - Over 1,220 calories and 250g complex carbs fuel serious muscle growth and mass.
PERFECT CARB TO PROTEIN RATIO - Optimized 6:1 carb-to-protein blend designed to pack on lean mass efficiently.

Rule 1 Proteins Mass Gainer in Chocolate Peanut Butter packs a serious punch with 1,220+ calories, 250g+ complex carbs, and 40g of all-whey protein per serving. Enhanced with creatine monohydrate and crafted in GMP-certified US facilities, it’s designed for millennials who demand clean, effective nutrition to power intense workouts and rapid muscle growth. Perfect for those ready to break limits and own their gains.

Specifications

ASIN	B0BJN1YN36
ASIN	B0BJN1YN36
Age Range Description	Adult
Allergen Information	Milk, Soy
Best Sellers Rank	#23,150 in Health & Household ( See Top 100 in Health & Household ) #17 in Sports Nutrition Weight Gainers
Brand Name	Rule 1 Proteins
Customer Reviews	4.3 4.3 out of 5 stars (78)
Date First Available	October 18, 2022
Diet Type	Gluten Free
Flavor	Chocolate Peanut Butter
Item Dimensions	8 x 8 x 11 inches
Item Highlight	High-Calorie Weight Gain Formula with 1,220+ Calories, 250g+ Complex Carb Blend, 40g All-Whey Protein Per Serving
Item Nype Name	Weight Gainer
Item Weight	6 pounds
Item model number	RZ0669
Manufacturer	Rule One Proteins, LLC
Manufacturer	Rule One Proteins, LLC
Manufacturer Part Number	RZ0669
Model Name	Mass Gainer
Model Number	RZ0669
Number of Items	1
Package Type Name	Bottle
Product Benefits	Informed Choice Certified, Informed Protein Certified, Meal Replacement
Product Dimensions	8 x 8 x 11 inches; 6 pounds
Protein Source	Whey
Recommended Uses For Product	Meal Replacement
Total Servings Per Container	8
UPC	196671006691
Unit Count	96 Ounce

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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Excellent communication throughout the order process. Product is perfect.

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